If I understand you correctly, you want to hide the table cell matrix for the non-all-day events in the day and week views. Please use the following CSS code:
.k-scheduler-dayview > tbody > tr + tr,
.k-scheduler-weekview > tbody > tr + tr,
.k-scheduler-workWeekview > tbody > tr + tr
I recommend removing any height that you may have set for the Scheduler in this case, otherwise there will be large empty space above the widget's bottom border when the table cells are hidden.
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